Microsoft Office Remote Code Execution
Microsoft Office Excel contains a remote code execution vulnerability that could allow an attacker to take complete control of an affected system if a user opens a specially crafted Excel file that includes a malformed object.
- Vendor
- Microsoft
- Product
- Office
- CVSS
- 8.8
- EPSS (exploit probability)
- 43.1%
- Status
- kev
- CISA patch-by (BOD 22-01)
- Published
Microsoft Office Excel contains a remote code execution vulnerability that could allow an attacker to take complete control of an affected system if a user opens a specially crafted Excel file that includes a malformed object.
Added to CISA’s Known Exploited Vulnerabilities catalog on 2026-04-14. Required action per CISA: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. Due date: 2026-04-28.
This is an auto-synced KEV catalog record pending a full 0dayNews write-up — see CISA’s KEV catalog and the NVD record linked above for primary sources.